78342550480 has 40 divisors (see below), whose sum is σ = 182642810112. Its totient is φ = 31251621504.

The previous prime is 78342550471. The next prime is 78342550493. The reversal of 78342550480 is 8405524387.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×78342550480² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78342550480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1304812 + ... + 1363531.

Almost surely, 2^78342550480 is an apocalyptic number.

It is an amenable number.

78342550480 is an abundant number, since it is smaller than the sum of its proper divisors (104300259632).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78342550480 is a wasteful number, since it uses less digits than its factorization.

78342550480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2668723 (or 2668717 counting only the distinct ones).

The product of its (nonzero) digits is 1075200, while the sum is 46.

The spelling of 78342550480 in words is "seventy-eight billion, three hundred forty-two million, five hundred fifty thousand, four hundred eighty".